The dramatic music, blue-tinged reconstructions and menacing voiceover all suggested that we should be sceptical of World War Two heroine Vera Atkins. The title of the programme indeed, Secret War: The Spymistress and the French Fiasco, told us how we should feel. We know that she was a brave member of the Special Operations Executive, the British department responsible for secret agents in occupied lands, but thankfully this programme came along to debunk her. Or did it?